Print Report
CEGL005538 Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Mahonia nervosa Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir - Western Hemlock / Salal - Cascade Barberry Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This Douglas-fir - western hemlock forest of British Columbia, Washington and Oregon has a canopy dominated by Pseudotsuga menziesii or a mixture of that species and Tsuga heterophylla. Thuja plicata is often present and sometimes prominent to codominant. Tsuga heterophylla typically dominates tree regeneration and always occupies over 10% total cover. The moderate to dense shrub layer is dominated by Gaultheria shallon or codominated by that species and Mahonia nervosa. Mahonia nervosa always has over 5% cover. Acer circinatum is sometimes present to codominant. Vaccinium parvifolium is almost always present and often prominent. The herb layer is absent to moderate. Polystichum munitum is frequently present in small amounts (under 3% cover), and Linnaea borealis is usually present to sometimes dominant. This association occurs on the western slopes of the Cascades and on the eastern Olympic Peninsula. It is absent from the outer coastal strip and infrequent to rare on the western side of the Olympic Mountains. It occurs on low to middle elevations on well-drained soils.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is similar to ~Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Vaccinium parvifolium Forest (CEGL005539)$$ but has high cover of Mahonia nervosa and frequently has some Polystichum munitum present.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The canopy is dominated by Pseudotsuga menziesii or a mixture of that species and Tsuga heterophylla. Thuja plicata is often present and sometimes prominent to codominant. Tsuga heterophylla typically dominates tree regeneration and always occupies over 10% total cover. The moderate to dense shrub layer is dominated by Gaultheria shallon or codominated by that species and Mahonia nervosa (= Berberis nervosa). Mahonia nervosa always has over 5% cover. Acer circinatum is sometimes present to codominant. Vaccinium parvifolium is almost always present and often prominent. The herb layer is absent to moderate. Polystichum munitum is frequently present in small amounts (under 3% cover), and Linnaea borealis is usually present to sometimes dominant.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: No Data Available
Nations: CA,US
States/Provinces: BC, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.942450
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G4
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nd Vancouverian Forest & Woodland Division | D192 | 1.B.2.Nd |
| Macrogroup | 1.B.2.Nd.3 Western Hemlock - Sitka Spruce - Redwood Rainforest Macrogroup | M024 | 1.B.2.Nd.3 |
| Group | 1.B.2.Nd.3.c Douglas-fir - Western Hemlock / Salal Rainforest Group | G240 | 1.B.2.Nd.3.c |
| Alliance | A3378 Western Hemlock - Douglas-fir / Western Cordilleran Bunchberry Mesic Forest Alliance | A3378 | 1.B.2.Nd.3.c |
| Association | CEGL005538 Douglas-fir - Western Hemlock / Salal - Cascade Barberry Forest | CEGL005538 | 1.B.2.Nd.3.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Mahonia nervosa (Chappell 2006b) [14 plots]
>< Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon (Kagan et al. 2004)
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Mahonia nervosa (Meidinger et al. 2005) [PNWCOAST_185]
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Mahonia nervosa Forest (Crawford et al. 2009) [PNWCOAST_185]
>< Tsuga heterophylla / Berberis nervosa - Gaultheria shallon (Topik et al. 1986)
>< Tsuga heterophylla / Gaultheria shallon - Berberis nervosa (Henderson et al. 1989)
>< Tsuga heterophylla / Gaultheria shallon - Berberis nervosa (Henderson et al. 1992)
>< Tsuga heterophylla / Mahonia nervosa var. nervosa - Gaultheria shallon (Kagan et al. 2004)
>< Western hemlock / dwarf Oregon-grape - salal (TSHE/BENE-GASH) (Hemstrom and Logan 1986)
>< Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon (Kagan et al. 2004)
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Mahonia nervosa (Meidinger et al. 2005) [PNWCOAST_185]
= Pseudotsuga menziesii-Tsuga heterophylla/Gaultheria shallon-Mahonia nervosa Forest (Crawford et al. 2009) [PNWCOAST_185]
>< Tsuga heterophylla / Berberis nervosa - Gaultheria shallon (Topik et al. 1986)
>< Tsuga heterophylla / Gaultheria shallon - Berberis nervosa (Henderson et al. 1989)
>< Tsuga heterophylla / Gaultheria shallon - Berberis nervosa (Henderson et al. 1992)
>< Tsuga heterophylla / Mahonia nervosa var. nervosa - Gaultheria shallon (Kagan et al. 2004)
>< Western hemlock / dwarf Oregon-grape - salal (TSHE/BENE-GASH) (Hemstrom and Logan 1986)
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